Oligoaniline-containing electrochromic polymers with tunable properties

Y. Li, X. Jia, Y. Zhou, D. Chao*

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Electrochromic polymers have attracted much attention due to their potential applications in displays, smart windows, intelligent mirrors, and wearable devices. Here, a novel polyamic acid containing aniline pentamer with improved electrochromic properties and new functionalities was synthesized via oxidative coupling polymerization, followed by post-polymerization of tetraaniline, polyhedral oligomeric silsesquioxane, and fluorene, respectively. With the introduction of tetraaniline pendants, the resultant polymer exhibits improved electrochromic performance with high optical contrast value and rapid switching rate, because of the high content of electrochromic units in the polymeric structure. The polyamic acid functionalized with polyhedral oligomeric silsesquioxane, demonstrates a great enhancement of switching rate in the elec-trochromism, due to the rapid electrolyte migration through polymer film under electrochemical potentials. In addition, a new electrofluorochromic feature is easily achieved through the introduction of fluorescent fluorene groups into the polymeric architecture.

Original languageEnglish
Pages (from-to)649-657
Number of pages9
JournalExpress Polymer Letters
Volume12
Issue number7
DOIs
Publication statusPublished - 1 Jul 2018

Keywords

  • Electroactive
  • Electrochromic
  • Electrofluorochromic
  • Oligoaniline
  • Smart polymers

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